| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [Wh det] [is] [prep] | 83 |
|
| 2 | [adv] know [Wh det] [is] | 35 |
|
| 3 | know [Wh det] [is] [prep] | 34 |
|
